This firmware update is being rolled out in stages, with devices updating sequentially over the next few days.

It's important to note that the device's firmware version is distinct from the WiiM Home App version. To check your device's firmware version, open the WiiM Home App, go to the 'Device' tab, tap the 'gear icon (Cog Wheel)' for device settings, select 'Device Info', and then view 'Firmware Version'.


5.2.726631 (Latest)


Release date:

     8 / 18 / 2025


What's New:


  1. Room Correction & EQ Integration: Room Correction and EQ now work together to provide an optimized listening experience. Learn More 
  2. Stabilized Wi-Fi Connection: Enhanced connection reliability, especially for mesh network environments.
  3. Screen Enhancements:
    • Corrected highlight behavior for Local Radio and Recently Played.
    • Expanded the tap area for easier Preset selection.
    • Ensured full display of Presets and Recently Played content.
  4. Amazon Music: Bitrate information is now displayed when streaming Amazon Music Prime.
  5. Sub Pro Intergartion: Improved pairing experience and overall functionality when using the Sub Pro.
  6. YouTube Music: Native, seamless streaming support. (requires the upcoming app version 3.3.1).
  7. Soundtrack SDK Upgrade: Under-the-hood improvements for a smoother, more consistent listening experience.


Bug Fixes:


  1. Alarm Fixes:
    • Resolved an issue where weekly alarms occasionally failed to trigger.
    • Fixed a bug where only the default tone played for Pandora alarm.
  2. Dolby Audio Fixes:
    • Fixed no-sound issues when playing Dolby audio in multiroom setups.
    • Corrected volume balance behavior for Dolby audio.
    • Corrected low volume when playing Dolby Digital content.
  3. USB Output Fixes:
    • Resolved no-sound issues after reconnecting a USB DAC device when using Google Cast, TIDAL Connect, Spotify Connect, or Qobuz Connect.
    • Fixed audio stuttering when playing at 44.1kHz or 48kHz sample rates.
  4. Playing Status: Corrected the playback status indicator when no music is playing.
  5. Qobuz: Now displays the correct artist name in the app during playback.
  6. Bluetooth Output: Fixed a no-audio issue after switching outputs.
  7. NAS & USB Playback: Playback now correctly restarts from the beginning after the last track finishes.
  8. Playback Speed: Resolved rare cases where songs played at accelerated speed.


5.2.723250


Release date:

     7 / 15 / 2025


What's New:


  1. Roon Ready Certified: Seamless bit-perfect streaming from Roon.

    Tip: if Amp Ultra doesn’t appear in Roon after updating, simply restart the Roon app.

  2. HDMI ARC Upgrade: 
    • Eliminated pop/crackle noises.
    • Added Auto-Sensing for instant TV-audio pickup.
    • Improved the stability of ARC connections.
  3. Advanced Parametric EQ: High-Pass & Low-Pass filters now available (App v3.2.6+ required).
  4. Deezer: “Play Next / Play Last” options added.
  5. Bluetooth: Adjustable latency for perfectly synced audio.


Bug Fixes:


  1. Soundtrack Pairing: Fixed an issue preventing successful soundtrack pairing.
  2. Gapless Playback: Fixed an issue causing incomplete audio playback. 
  3. USB Indexing: Corrected the extraction of PNG format covers from MP3 files and fixed a crash issue that caused playback to stop.
  4. Qobuz Connect: Fixed an issue where playback would automatically resume after pausing when using USB output.